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Global operating condition evaluating and quality tracing method for hydrocracking process

A technology of hydrocracking and operating conditions, applied in data processing applications, instruments, calculations, etc.

Inactive Publication Date: 2017-05-24
CENT SOUTH UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, due to the large number of physical and chemical reaction devices and the wide distribution of products in the hydrocracking process, there are more than 800 parameter variables in the whole process, and there are dozens of key variables alone. Analytical technology to evaluate the overall operating status and optimize the location of the degraded link of operating performance

Method used

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  • Global operating condition evaluating and quality tracing method for hydrocracking process
  • Global operating condition evaluating and quality tracing method for hydrocracking process
  • Global operating condition evaluating and quality tracing method for hydrocracking process

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Embodiment 1

[0076] a. According to the process plan, the hydrocracking process is simplified into three parts: hydrofining, hydrocracking and fractionation systems, such as Figure 4 Shown. Combined with the production characteristics of the hydrocracking process, the inlet conditions are added as a virtual process to the division of typical production processes in the hydrocracking process. The inlet conditions include feed oil flow and feed oil composition. The hydrorefining process is mainly to remove sulfides, nitrides, and oxides in the feedstock oil, while saturating olefins and thickened aromatics to provide qualified feed for the hydrocracking part; the hydrocracking process mainly uses inferior heavy raw materials The oil is converted into high-quality light oil; the fractionation system removes hydrogen sulfide and obtains a reaction effluent with less S, and separates the reaction effluent into light naphtha and heavy naphtha according to different distillation ranges. There are...

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Abstract

The invention provides a global operating condition evaluating and quality tracking method for the hydrocracking process. The method comprises the steps of based on difference forms of quality standard requirements of each typical production procedure in the hydrocracking process, calculating a process capability index of each index in a quality evaluating index model of each production procedure; based on the process capability indexes, calculating a QA score of each index in the quality evaluating index model of each production procedure; based on the QA score of each index, building a weight coefficient of each index in a hydrocracking process global operating condition quality evaluating index model for the QA score contribution degree of an upper layer index by using multi-element linear regression analysis method; and based on the QA scores and the corresponding weight coefficients, positioning global operating performance degradation links and parameters of the hydrocracking process. The method provided by the invention can realize an operating condition evaluating function and a product quality tracking function, and realize efficient, economic and green production of refining and chemical enterprises.

Description

Technical field [0001] The invention relates to the technical field of evaluation and quality tracing of the operating conditions of the production process, and more specifically to a method for evaluating the overall operating conditions and quality tracing of a hydrocracking process. Background technique [0002] The oil refining industry is located in the upstream of the manufacturing industry, and its output value accounts for about one-third of the national economy. It is a pillar industry of the national economy and the main driving force for the development of other industries. The hydrocracking process is an important and typical link in oil refining production. The process mechanism is that under the conditions of heating, hydrogen and catalysts, the imported heavy oil is subjected to hydrorefining, hydrocracking and hydroisomerization reactions. It is transformed into 5 kinds of light oils: light naphtha, heavy naphtha, aviation kerosene, diesel, and hydrogenated tail o...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/04
CPCY02P90/30Y02P90/82G06Q10/0639G06Q10/0633G06Q50/04
Inventor 王雅琳李灵袁小锋胡芳香阳春华岑丽辉
Owner CENT SOUTH UNIV
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